앱 메인 로고Post Black Belt
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Easy learning for how to use the app!

Post Black Belt is a personal diary app for Jiu-Jitsu practitioners. We will show you how to record today's workout and review and analyze your Jiu-Jitsu in various ways. You can access multiple features based on the three bottom navigation options.

홈 스크린

Check your exercise records in calendar

Write today's exercise as a diary entry and create your own jiu-jitsu calendar. You can swipe the calendar left or right to change the month and select specific dates to view the diary entries you've written below. Check your jiu-jitsu records for the month at a glance.
일기 작성창

Stamp today's jiu-jitsu on the monthly calendar

In the monthly calendar, pressing the black plus button allows you to write a diary entry for that date. Choose from practice, sparring day, no-gi, and other categories to stamp your training for the day. Memo entries do not count towards your training frequency, so feel free to use them for note-taking or planning competitions.
기술 카테고리가 열린 일기 작성창

Categorize Your Diary by Techniques

You can write down various information about today's workout. First, turn on the skill tree toggle button, and then you can choose skills like standing, guard, and guard pass when writing your diary. Your diary will then be categorized in the skill tree tab. Note that multi-selection of skills is not yet supported, so you will have to write a separate diary for each skill.
작성창이 열린 일기 작성창

Write Your Training Content in Diary

By turning on the diary toggle button, you can elaborate on today's workout. You can write up to 1000 characters, so feel free to detail your workout or review!
스파링 정보, 링크 작성창이 열린 일기 작성창

Add Sparring, Link Information

If you want to include more information, you can record the number of sparring rounds and also add links.
💡 Tip! Utilize the Notepad
If you find a technique you want to learn, use the notepad category to write your diary, and add YouTube or Instagram links. It will be convenient to open this diary at the gym and practice right away.
오늘의 주짓수 이미지 스크린

Remember today's exercise by creating an image

Create images that include the date, diary category, and your belt information from your workout photos. Belt information can be edited in your profile page.
시간 지정창이 열린 오늘의 주짓수 이미지 스크린
You can additionally record your workout time or temporarily change the diary category. This feature is activated on the date the diary is written in the monthly calendar.
월간 메모 스크린

Check your memos by month

Clicking on the 'Memo' button at the top menu allows you to view all your memo category entries for the month.
주간 리포트 스크린

Publish your own weekly jiu-jitsu report

Post Black Belt analyzes various events based on your diary entries, such as attendance, technique tree, competitions, and promotions. Take some time to review your weekly jiu-jitsu activities.